1 files changed, 0 insertions, 39 deletions
diff --git a/src/pkg/exp/eval/util.go b/src/pkg/exp/eval/util.go
deleted file mode 100644
index ffe13e170..000000000
--- a/src/pkg/exp/eval/util.go
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2009 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package eval
-
-import (
-	"exp/bignum"
-)
-
-// TODO(austin): Maybe add to bignum in more general form
-func ratToString(rat *bignum.Rational) string {
-	n, dnat := rat.Value()
-	d := bignum.MakeInt(false, dnat)
-	w, frac := n.QuoRem(d)
-	out := w.String()
-	if frac.IsZero() {
-		return out
-	}
-
-	r := frac.Abs()
-	r = r.Mul(bignum.Nat(1e6))
-	dec, tail := r.DivMod(dnat)
-	// Round last digit
-	if tail.Cmp(dnat.Div(bignum.Nat(2))) >= 0 {
-		dec = dec.Add(bignum.Nat(1))
-	}
-	// Strip zeros
-	ten := bignum.Nat(10)
-	for !dec.IsZero() {
-		dec2, r2 := dec.DivMod(ten)
-		if !r2.IsZero() {
-			break
-		}
-		dec = dec2
-	}
-	out += "." + dec.String()
-	return out
-}